/**
 * Created by PanJiaChen on 16/11/18.
 */

/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string | null}
 */
export function parseTime(time, cFormat) {
   if (arguments.length === 0 || !time) {
      return null
   }
   const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
   let date
   if (typeof time === 'object') {
      date = time
   } else {
      if (typeof time === 'string') {
         if (/^[0-9]+$/.test(time)) {
            // support "1548221490638"
            time = parseInt(time)
         } else {
            // support safari
            // https://stackoverflow.com/questions/4310953/invalid-date-in-safari
            time = time.replace(new RegExp(/-/gm), '/')
         }
      }

      if (typeof time === 'number' && time.toString().length === 10) {
         time = time * 1000
      }
      date = new Date(time)
   }
   const formatObj = {
      y: date.getFullYear(),
      m: date.getMonth() + 1,
      d: date.getDate(),
      h: date.getHours(),
      i: date.getMinutes(),
      s: date.getSeconds(),
      a: date.getDay()
   }
   const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
      const value = formatObj[key]
      // Note: getDay() returns 0 on Sunday
      if (key === 'a') {
         return ['日', '一', '二', '三', '四', '五', '六'][value]
      }
      return value.toString().padStart(2, '0')
   })
   return time_str
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time, option) {
   if (('' + time).length === 10) {
      time = parseInt(time) * 1000
   } else {
      time = +time
   }
   const d = new Date(time)
   const now = Date.now()

   const diff = (now - d) / 1000

   if (diff < 30) {
      return '刚刚'
   } else if (diff < 3600) {
      // less 1 hour
      return Math.ceil(diff / 60) + '分钟前'
   } else if (diff < 3600 * 24) {
      return Math.ceil(diff / 3600) + '小时前'
   } else if (diff < 3600 * 24 * 2) {
      return '1天前'
   }
   if (option) {
      return parseTime(time, option)
   } else {
      return (
         d.getMonth() +
         1 +
         '月' +
         d.getDate() +
         '日' +
         d.getHours() +
         '时' +
         d.getMinutes() +
         '分'
      )
   }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url) {
   const search = decodeURIComponent(url.split('?')[1]).replace(/\+/g, ' ')
   if (!search) {
      return {}
   }
   const obj = {}
   const searchArr = search.split('&')
   searchArr.forEach(v => {
      const index = v.indexOf('=')
      if (index !== -1) {
         const name = v.substring(0, index)
         const val = v.substring(index + 1, v.length)
         obj[name] = val
      }
   })
   return obj
}
// 树形结构的递归
export function transListToTreeData(list, rootValue) {
   // debugger
   var arr = []
   list.forEach(item => {
      if (item.pid === rootValue) {
         const children = transListToTreeData(list, item.id)
         if (children.length) {
            item.children = children
         }
         arr.push(item)
      }
   })
   return arr
}
